| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.64 | USD | 20251108 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.64 | USD | 20251107 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.34 | USD | 20251105 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.42 | USD | 20251104 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.5 | USD | 20251103 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.44 | USD | 20251102 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.44 | USD | 20251101 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.44 | USD | 20251031 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.51 | USD | 20251030 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 317.6 | USD | 20251029 |